On 8/2/2012 10:04 AM, Robert Macy wrote:
On Aug 2, 6:14 am, Thomas wrote:
Unless you are in the slammer.

I was told by a plumber once that porcelain has a natural 'acidity'
that helps prevent calcification of the urine.

Or, some such effect that no other material has.


Porcelain is HARDER than other ceramics. Glaze would keep stuff from
coming in contact with the porcelain. Before it is fired, porcelain
molded is like compacted baby powder...worked on some porcelain in
ceramics class and cleaning off mold marks was a bugger. Industrial
stuff may have other clays added but it is interesting to work with.

http://en.wikipedia.org/wiki/Porcelain